Ureteric access with flexible ureteroscopes: effect of the size of the ureteroscope

被引:21
|
作者
Hudson, RG
Conlin, MJ
Bagley, DH
机构
[1] Oregon Hlth Sci Univ, Div Urol & Renal Transplantat, Portland, OR 97201 USA
[2] Thomas Jefferson Univ, Jefferson Med Coll, Philadelphia, PA 19107 USA
关键词
ureteroscopy; endoscopy; ureter; urolithiasis;
D O I
10.1111/j.1464-410X.2005.05462.x
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVE To determine the optimum size of a flexible ureteroscope (FU) to minimize the need for ureteric dilatation. MATERIALS AND METHODS FUs from several different manufacturers and with different shaft diameters were used for ureteroscopy in adults. An initial attempt was made to pass one of the larger diameter FUs; if this was unsuccessful, the smaller 7.5 F FU was used. The results were reviewed retrospectively. RESULTS Flexible ureteroscopy was used in 115 consecutive patients at two different institutions. The ability to pass the FUs with no formal dilatation was directly related to the FU diameter. The rate of failing to pass with no formal dilatation was 37% for the 9.0 F, 8.5% for the 8.6 F, 5% for the 8.4 F and 0.9% for the 7.4 F ureteroscope. CONCLUSION Although other factors influence the overall effectiveness of the FU, the ability to pass FUs is directly related to their outer diameter. When only the ease of introduction is considered, the ideal ureteroscope outer diameter is 7.4 F.
引用
收藏
页码:1043 / 1044
页数:2
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